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Related party transactions (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 26, 2022
USD ($)
Jun. 30, 2022
USD ($)
item
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
item
Jun. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Related party transactions            
Accounts receivable, related parties   $ 0   $ 0   $ 18
Accounts payable, related parties   20   20   6
Related party activity research and development expenses   29 $ 40 61 $ 51  
Related party activity in selling, general and administrative expenses   8 9 41 23  
Product revenue            
Related party transactions            
Cost of revenue, related party activity   11 23 20 30  
Service and other revenue            
Related party transactions            
Cost of revenue, related party activity   34 34 87 51  
Service revenue            
Related party transactions            
Related party revenue     4   24  
Harvard University            
Related party transactions            
Related party revenue   100 $ 200 300 $ 200  
Accounts receivable, related parties           $ 200
Deferred revenue from related parties   $ 100   $ 100    
UltraDx            
Related party transactions            
Purchase price $ 1,900          
Number Of Manufacturing Instruments | item   10   10